Oprah Still America's Richest Black

The collective net worth of the America's richest rose $290 billion to $1.54 trillion. The only black American on the list this year is queen Oprah. Oprah Winfrey, 53, is ranked as the 165th richest person in America with a net worth of $2.5 billion.

Robert Johnson, who became America's first black billionaire in 2001, climbed back into this years billionaire rank with a net worth of $1.1 billion but did not make the Forbes 400 list, with it's $1.3 billion cut off.

Microsoft founder Bill Gates with a net wealth of $59 billion continued to be the wealthiest American for the 14th straight year, closely followed by investor Warren Buffett with a net wealth of $52 billion. The pair's fortunes each grew by $6 billion in the past year, Forbes said.

Las Vegas Sands owner, Sheldon Adelson, 74, with a worth of $28 billion and Chief Executive of Oracle Corp, Larry Ellison with a fortune of $26 billion remain at third and fourth position.

Google co-founders Sergey Brin and Larry Page, came in at fifth position with fortunes of $18.5 billion each. They are also jointly the second-youngest billionaires on the list.

The youngest billionaire on the list is John Arnold, 32, who runs hedge fund Centaurus Energy. His net worth is listed at $1.5 billion and is ranks the 317th richest American.